Abstract: A method and system for controlling power transfer includes the operations of receiving a power transfer value indicating a power level to be transferred either to or from an energy storage sub-system and receiving an input comprising a rotational speed of a rotating mass in the energy storage sub-system. The operations further include calculating a torque value corresponding to the power transfer value based on the rotational speed of the rotating mass and determining whether the torque value exceeds a maximum allowed torque. The operations further include defining an adjusted torque value as the maximum allowed torque value if the torque value exceeds the maximum allowed torque value or defining the adjusted torque value as the torque value if the torque value does not exceed the maximum allowed torque value, and providing the torque value to a direct torque controller for controlling the torque of the rotating mass.

Abstract: The present disclosure is directed to a system including a power source connected to at least two electrical buses, and a battery connected to each one of the electrical buses. Each battery is charged by the power source and is connected to a load via one of the electrical buses. A battery error signal generator generates a battery error signal for each battery by finding a difference between a sensed battery voltage and a reference voltage. A reference control signal generator generates a reference control signal for each battery based on the battery error signals for each battery. A power sensor produces a sensed power signal between the power source and each battery connected to each of the two electrical buses. The reference control signal and the sensed power signal for each battery controls a power output value from the power source to each battery.

Abstract: A method, system, and apparatus are provided for managing battery data. A health monitoring unit monitors a number of battery units for battery data. A data logger stores the battery data. A data processing system identifies performance information from the battery data. A new battery design may be modified based on the performance data. Also, the performance data may be compared to health thresholds for inconsistencies to identify when the number of battery units may need to be serviced.

Abstract: A method and system for controlling power transfer includes the operations of receiving a power transfer value indicating a power level to be transferred either to or from an energy storage sub-system and receiving an input comprising a rotational speed of a rotating mass in the energy storage sub-system. The operations further include calculating a torque value corresponding to the power transfer value based on the rotational speed of the rotating mass and determining whether the torque value exceeds a maximum allowed torque. The operations further include defining an adjusted torque value as the maximum allowed torque value if the torque value exceeds the maximum allowed torque value or defining the adjusted torque value as the torque value if the torque value does not exceed the maximum allowed torque value, and providing the torque value to a direct torque controller for controlling the torque of the rotating mass.